OPERATOR'S MANUAL
Model Series
410 thru 429
Model 428C Shown
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
Warning: This unit is equipped with an intemal combus_on engine and should not be used on or near any unimproved forest-
covered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a spark an'ester meeting
applicable local or state laws (if any). If a spark an'ester is used, it should be maintained in effecfiye working order by the operator.
In the State ofCalifornia the above is required by law (Section 4442 of the California Public Resources Code). Other states may have
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler isavailable through your nearest engine authodzed
service dealer or contest the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
PRINTED IN U.S.A. FORM NO. 770-1026B
(9970909)
SECTION 1: IMPORTANT SAFE OPERATION PRACTICES
,_ WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF
NOT FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF
YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL
BEFORE A'I-I'EMPTING TO OPERATE YOUR_ LAWN MOWER. FAILURE TO COMPLY WITH
THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS
SYMBOL, HEED ITS WARNING:
WARNING: The Engine Exhaust from this product contains chemicals known to
the State of California to cause cancer, birth defects or other reproductive harm.
&
DANGER: Your lawn mower was built to be operated according to the rules for safe operation in
this manual. As with any type of power equipment, carelessness or error on the part of the operator
can result in serious injury. This lawn mower is dapable of amputating hands and feet end throwing
objects. Failure to observe the following safety instructions could result in sedous injury or death.
1. GENERAL OPERATION
• Read this operator's manual carefully in itsentirsty
beforeattempting to assemble this machine.Read,
understand, and follow all instructions on the
machine and in the manual(s) before operation.Be
completelyfamiliarwith the controlsand the proper
use of this machine before operating it. Keep this
manual in a safe place for future and regular
referenceand forordedng replacement parts.
• Your rotary mower is a precision piece of power
equipment, not a plaything. Therefore, exercise
extreme caution at all times. Your unit has bean
designedto perform one job:to mow grass.Do not
useitfor any other purpose.
• Never allow childrenunder 14 years old to operate
s power mower. Children 14 years old and over
should only operate mower under close parental
supervision. Only responsible Individualswho are
familiar with these rules of safe operationshould
be allowed to useyour mower,
• Keep the area of operation clear of all persons,
particularly small children and pets. Stop engine
when they are in the vicinity of your mowerto help
prevent blade contact or thrown object injury.
Although the area of operation should be
completely cleared of foreign objects, an object
may have been overlooked and could be
accidentally thrown by the mower in any direction
and cause sedous personal injury to the operator
orany others allowed in the area.
• Wear sturdy, rough-soled work shoes and close-
fittingslacks and shirts. Shirtsand pants thatcover
the arms and legs an_l steal-toed shoes are
recommended. DO notwear loose fitting clothesor
jewelry. They can be caught in moving parts.
Never operate a unitin bare feat, sandals, slippery
or lightweight (e.g. canvas) shoes.
Always wear safety glasses or safety goggles
during operationor while performing an adjustment
or repair, to protecteyes from foreign objectsthat
may be thrownfromthe machine inanydirection.
Thoroughly inspectthe area where the equipment
is to be used. Remove all stones, sticks, wire,
bones, toys and other foreign objectswhich could
be picked up and thrown by the mower in any
direction and cause sedous pereonal injuryto the
operator or any others allowed in the area. Plan
your mowing patternto avoid dischargeof matedal
toward reads, sidewalks, bystanders and the like.
To help avoid a thrown objects injury, keep
children, bystanders and helpers at least 75 feet
fromthe n_owerwhileitis inoperation.
• Do not put hands or feet :near or under rotating
parts. Keep clear of discharge opening at all times
asthe rotatingbladecan cause injury.
• Many injudos occuras a resultof the mowerbeing
puffedover the foot duringa fall. Do nothang on to
the mower if you are falling; release the handle
immediately.
• Never pull the mower toward you while you are
walking. If you must back the mower away from a
wall or obstructionfirst look down and behind,and
then follow these steps:
• Step back from the mower to fully extend your
arms,
• Be sure you are well balanced with sure
footing.
• Pull the mowerbankslowly, nomorethan haft
way toward you.
Repeat these steps as needed.
• Do not operate the mower while under the
influenceof alcoholor drugs.
2
• Do not engage the self-propelled mechanism on
units so equipped while starting engine.
• The blade control handle is a safety device. Never
attempt to bypass its operation. Doing so makes
the safety device inoperative and may result in
personal injury through contact with the rotating
blade. The blade control handle must operate
easily in both directions and automatically return to
the disengaged position when released.
• Never operate the mower in wet grass. Always be
sure of your footing. A slip and fall can cause
serious personal injury. Keep a firm hold on the
handle and walk, never run. If you feel you are
losing your footing, RELEASE THE BLADE
CONTROL HANDLE IMMEDIATELY and the
blade will stop rotating within three seconds.
• Mow only in daylight or good artificiallight.
• Stop the blade when crossing gravel drives, walks
or roads.
• If the equipment should start to vibrate abnormally,
stop the engine and check immediately for the
cause. Vibration is generally a waming of trouble.
• Shut the engine off and wait untilthe blade comes
to a complete stop before removing the grass
catcher or unclogging the chute. The cutting blade
continues to rotate for a few seconds after the
engine is shut off. Never place any part of the body
in the blade area until you are sure the blade has
stopped rotating.
• Never operate mower without proper guards, grass
catcher, plates or other safety protective devices in
place.
• Muffler and engine become hot and can cause a
bum. Do not touch.
• Only use accessoriesapprovedfor this machine
bythe manufacturer.Read, understand,andfollow
all instructions provided with the approved
accessory.
• If situationsoccur which are not covered in this
manual, use care and good judgment. Contact
your dealer for assistance.Telephone 1-800-800-
7310 for the nameofyournearestdealer.
2. SLOPE OPERATION
For your safety, use the slope gauge included as part of
this manual to measure slopes before operating this unit
on a sloped or hilly area. If the slope is greater than 15
degrees as shown on the slope gauge, do not operate
this unit on that area or serious injury could result.
DO:
• Mow across the face of slopes; never up and
down. Exercise extreme caution when changing
direction on slopes.
• Watch for holes, ruts, hidden objects, or bumps.
Tall grass can hide obstacles.
• Atways be sure of your footing. A slip and fall can
cause serious personal injury. If you feel you are
losing your balance release the blade control
handle immediately and the blade will stop in less
than 3 seconds.
DO NOT:
• Do not mow near drop-offs, ditches or
embankments. The operator could lose footing or
balance.
• Do not mow slopes greater than 15 degrees as
shown on the slope gauge.
• Do not mow on wet grass. Reduced footing could
cause slipping.
3. CHILDREN
Tragic accidents can occur if the operator is not alert to
the presence of children. Children are often attracted to
the mower and the mowing activity. Never assume that
children will remain where you last saw them.
• Keep children out of the mowing area and under
the watchful care of a responsible adult other than
the operator.
• Be alert and turn mower off if a child enters the
area.
• Before and while moving backwards, look behind
and down for small children or other objects.
Never allow children under age 14 to operate the
mower. Children 14 years of age and above
should read and understand the operation
instructions and safety rules in this manual.
• Use extreme care when approaching blind
corners, shrubs, trees, or other objects that may
obscure your vision of a child or hazard.
4. SERVICE
Use extreme care in handling gasoline and other
fuels. They are extremely flammable and the
vapors are explosive.
Use only an approved gasoline container.
Never remove gas cap or add fuel while the engine
is running. Allow engine to cool at least two
minutes before refueling.
Replace gasoline cap securely and wipe off any
spilled gasoline before starting the engine as it
may cause a fire or explosion.
Extinguishall cigarettes, cigars, pipes and other
sourcesofignition.
Never refuel machine indoorsbecause flammable
vaporswillaccumulateinthearea.
Never store the machine or fuel container inside
where there is an open flame or spark such as a
gas water heater, space heater, or fumace.
Never run an engine inside a closed area.
3
• To reduce fire hazard, keep mower free of grass,
leaves, or other debris build-up. Clean up oil or
fuel spillage. Allow mower to cool at least 5
minutes beforestodng.
• Before cleaning, repairing, or inspecting, make
certain the blade and all moving parts have
stopped. Disconnectthe spark plugwire, and keep
the wire away from the spark plug to prevent
accidentalstarting.
• Check the blade and engine mounting bolts at
frequent intervals for proper tightness. Also,
visually inspect blade for damage (e.g., bent,
cracked or worn). Replace with blade which meats
odginal equipment specifications listed in this
manual
• Keep all nuts, bolts, and screws tight to be sure
theequipmentis insafe workingcondition.
• Never tamper with safety devices, Check their
properoperationregulady.
&
After stdking a foreign object, stop the engine,
remove the wire from the spark plug, and
thoroughly inspect the mower for any damage.
Repair the damage before starting and operating
the mower.
Never attempt to make a wheel or cutting height
adjustmentwhilethe engine is running.
Grass catcher components are subject to wear,
damage and detsdorstion, which could expose
moving parts or allow objects to be thrown. For
safety protection, frequently check components
and replace with manufacturer's recommended
parts,when necessary.
• Mower blades are sharp and can cut. Wrap the
blade(s) or wear gloves, and use extra caution
when servicing them.
• Do not change the engine governor setting or
overspeed the engine. Excessive engine speeds
are dangerous.
WARNING - YOUR RESPONSIBILITY: Restrict the use of this power machine to persons who
read, undemtandand followthe warningsand instructionsinthis manual and onthe machine.
DANGER
Figure1 Safety Labels FoundOn Lawn Mower
4
SECTION 2: FINDING YOUR MODEL NUMBER
This Operator's Manual is an important part of your new walk behind. It will help you assemble, prepare and
maintain your walk behind. Please read and understand what itsays.
Before you start to prepare your walk behind for its first use, please locate the model plate and copy the
information from itin this Operator's Manual. The information on the model plate is very important if you need
help from your dealer or the MTD customer support department.
• Every walk behind has a model plate. You can locate it by standing behind the unit in the operating
position and looking down at the rear of the deck.
• The model plate will look like Figure 2
r
[
XXX-X-XXX-X-XXX XXXXXXXXXXX
MTD PRODUCTSINC
CLEVELAND,OHIO44136
This is where your model number will be.
This is where your serial number will be.
Copy the model number here:
Copy the serial number here:
Figure 2
SECTION 3: CALLING CUSTOMER SUPPORT
If you are having difficulty assembling this product or if you have any question regarding the controls,
operation or maintenance of this unit, please call the Customer Support Department. You can reach them by
calling:
1-800-800-7310
Before you call, make sure that you have your model and serial numbers ready. By having the model and
serial numbers ready, you help the Customer Support Representative give you faster service. To find your
unit's model and serial number, see SECTION 2: FINDING YOUR MODEL NUMBER.
5
O_
USE THIS PAGE AS A GUIDE TO DETERMINE SLOPES WHERE YOU MAY NOT OPERATE SAFELY.
|q
I
SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE
A POWER POLE
A CORNER OF A BUILDING
OR A FENCE POST
I
I
o
m
¢)
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rrl
lbwARNING
Do notmow on inclineswith a slopein excess of 15 degrees(a riseof approximately2-1/2 feet every 10 feet). A ridingmower
couldoverturnand cause seriousinjury. Ifoperatinga walk-behindmower on such a slope, it is extremelydifficultto maintain
yourfooting and youcouldslip,resultinginsedousinjury.
Operate RIDING mowersup and downslopes,neveracrosstheface ofslopes.
Operate WALK-BEHINDmowersacrosstheface ofslopes,neverup and downslopes.
SECTION 4" UNPACKING
TO REMOVE UNIT FROM CARTON
I. Remove staples, break glue on top flaps, or cut
tape at carton end and peel along top flap to open
carton.
2. Remove loose parts if included with unit (i.e.,
owner's manual, etc.).
3. Cut along dotted lines and lay carton down flat.
4. Remove packing material.
5. Roll or slide unit out of carton. Check carton
thoroughly for loose parts.
NOTE: Parts included for assembly of grass catcher
are listed on page 8.
TOOLS REQUIRED FOR ASSEMBLY
Pair of Pliers
Phillips Screwdriver t
7/16" or Adjustable Wrench 1"
1"Hardtop Grass Bags Only.
DISCONNECT SPARK PLUG WIRE
Before setting up your lawn mower, disconnect the
spark plug wire from the spark plug, and ground it
against the engine. See Figure 3.
NOTE: On engines with a rubber boot, attach rubber
boot to a bolt on the engine to ground.
Spark Plug Wire
With Rubber Boot
\
/\
Spark Plug
Brigg..s&.Stratton
_ng,nes
v.s,ot.
__,_'T_ i_on Engine_
Q
Plug
Wire
Retaining
Post, _ _park
Spark Plug Wire
All Engines Tecumseh
With Rubber Engines
Boot
Fi lure 3
Upper
Handle
Mounting
Bracket
Blade Control Handle
Hand Knob
Lower
Handle.._
-.\
Hair Pin
In
Spark
Handle
Mountin(I
Bracket"
Figure 4
7
SECTION 5" SET-UP
INSTRUCTIONS
This owner's guide covers various models of
mowers. Follow only those instructions which
pertain to your unit.
IMPORTANT: This unit is shipped WITHOUT
GASOLINE or OIL in the engine. Be certain to
service engine with gasoline and oil before
operatingyour mower.
NOTE: Reference to right or left hand side of the
mower isobsewed from theoperating position.
HOWTO SET-UPYOUR LAWN MOWER
(Refer to Figure4)
1. Remove any packing material which may be
between the upper and lower handles for
shippingpurposes.
2.
Pull up and back on the upper handle to raise
the handle into the operating position. Make
certain the lower handle is seated securelyinto
the handle mountingbrackets.Tightenthe hand
knobson each side of the handle (cerriagebolts
mustbe seated propedyintothe handle).
NOTE: Your mower is shipped with the handle in
the higher height position.If you wish to lower the
heightof the handle, refer to the AdjustmentSection
at thistime.
3.
Remove the hairpinclips from the outerhole in
the weld pins on the handle mountingbrackets.
Using a pair of pliers, squeeze one leg of the
lower handle against the handle mounting
bracket.Insert thehairpinclip intothe innerhole
onthe weld pin. Repeat on other side,
4. The rope guide is attached to the dghtside of
upper handle. Loosen the wing nut which
securesthe ropeguide.
5.
With the spark plug wire disconnected and
grounded, holdthe blade controlhandle against
the upper handle, and pull the starter rope out
ofthe engine. Release the blade controlhandle.
Slipthe starter ropeintothe rope guide,Tighten
thewingnut.
6. Make certain ell nuts and bolts are tightened
securely.
SOFT GRASS BAG
(Models410 thru 418)
Parts for Soft Grass Bag:
FrontFrame
Rear Frame
Bag
Assemble soft grass bag as follows:
1. Jointhe rear frame and front frame assemblyas
shownin Figure5A.
2. Place bag over frame (black plasticside is the
bottomof bag). Slipthe openings in the side of
the plastic channel on bag over the hooks on
the grass catcherframe.
3. Secure bag to frame by woddng the plastic
channelson bag over frame as shownin Figure
5B. All of the plasticchannels exceptcenter top
of bag attach from the outside of bag. Center
topof bag attachesfrom the insideof bag.
Frame
Assembly
-._ Rear
Frame
Figure5
HARDTOP GRASS BAG
(Models 420 thru 428)
Partsfor Hardtop Grass Beg:
FrontFrame
Rear Frame (packed insidehardtopcover)
Bag
HardtopCover
MountingBracket
PhillipsScrew
Hex LockNut
, Slit
Plastic
Channels
GRASS CATCHER ASSEMBLY (Optional
Equipment)
NOTE: Make certain bag is turned right side out
before assembling (warning label will be on the
outside). Figure6
Rear
Frame
Handle
Bottom
Figure 7
Hook
Slot In
Hardtop
Cover
Grass
Catcher "
Handle
Figure 8
Phillips
Head
Screw
Mounting
Bracket
Hex Lock
Nut
Figure 9
Assemble hardtop grass bag as follows:
1.
Insert one end of the rear frame into the slit in
the cloth channel on the edge of the grass bag
(slits are approximately 6 inches from the
end of the bag). See Figure 6A. Feed all the
material on one side of the frame before
working it around frame. Make certain the other
end of rear frame comes out the slit in the other
side. See Figure 6B.
Slide the ends of the front frame assembly into
the ends of the rear frame as shown in Figure
7A. The handle in front frame assembly goes
away from the black plastic bottom of the bag.
Push the two frames together until the
cross piece on the front frame contacts
the roar frame.
3.
4.
5.
6,
7,
Slip the openings in the side of the plastic
channel on bag over hooks on the grass
catcher frame. See Figure 7B.
Secure front of bag to front frame by working
the five plastic channels on bottom, sides and
top of bag over frame.
Hold the bag and frame so the bag hangs from
the frame (is not bunched around the frame).
Slide the handle on the grass catcher frame
down into the slot in the hardtop cover as
shown in Figure 8.
Press the rear frame into the two tabs at the
back of the hardtop cover and the cross bar on
the front frame into the channel on the front of
the hardtop cover. Some force may be required.
Place the mounting bracket under the front of
the handle, with the tabs on the bracket facing
up. Insert phillips head screw down through the
hardtop cover and mounting bracket. Secure
with hex lock nut. See Figure 9.
Mulching
Baffle
(Optional)
A'I'FACHING GRASS CATCHER TO
MOWER
NOTE: If your mower is equipped with a mulching
baffle, it is in place on the mower. To remove the
mulching baffle, lift the rear discharge door on the
mower. Remove the mulching baffle. See Figure 10.
Figure 10
9
Slot I.
Handle
Bracket
Assembly
Figure 11
Tab
\
Rod
Chute
Deflector
Rear
Discharge
Door
Push
Nut
To attach the grass catcher:
1. Lift the rear discharge door on the mower.
NOTE: Make certain cables are routed to the
outside of the handle so they are not in the way
when attaching the grass catcher.
2. Place the hooks on the grass catcher into the
slots in the handle bracket assemblies. See
Figure 11. Release the rear discharge door.
To remove the grass catcher, lift the rear discharge
door on the mower. Lift the grass catcher up, out of
the slots in the handle bracket assemblies. Release
the rear discharge door.
&
WARNING: Never operate the mower
unless the hooks on the grass catcher are
seated in the slots on the handle bracket
assemblies, and the rear discharge door
rests firmly against the top of the grass
catcher.
OPTIONAL CHUTE DEFLECTOR
If your mower is equipped with the optionalchute
deflector,assemble as follows.
1. Slide the rod intothe upper edge of the chute
deflectorso the tabon the rod is towardthe left
side of the chute deflector. When assembled
correctly, the rod will extend further to the left
sidethan the dghtside.See Figure12,
2. Slide the pushnut ontothe dght side of the rod
tosecure,
Figure 12
Rear
Door
i/
Slots in
Handle Bracket
Assemblies
Figure 13
A'R'ACHING CHUTE DEFLECTOR TO
MOWER
Lift the rear discharge door on the mower. Place the
ends of the rod into the slots in the handle bracket
assemblies. See Figure 13. Release the rear
discharge door.
To remove the chute deflector, lift the rear
discharge door on the mower. Lift the chute
deflector up, out of the slots in the handle bracket
assemblies. Release the rear discharge door.
10
SECTION 6" CONTROLS
Blade Control Throttle
Handle Control
_f
/"
Recoil
Starter
Figure 14
BLADE CONTROL HANDLE
WARNING: This control mechanism is
,i_ a safety device. Never attempt to bypass
its operations.
The blade control handle is located on the upper
handle of the mower. See Figure 14. The blade
control handle must be depressed in order to
operate the unit. Release the blade control handle
to stop the engine and blade.
WARNING: The blade will be rotating
whenever the engine is running.
THROTTLE CONTROL
The throttle control is located on the side of the
upper handle. It is used to regulate the engine
speed.
WARNING: The throttle control cannot
be used to stop the engine.
RECOIL STARTER
The recoil starter handle is attached to the handle
and is used to start the engine. See Figure 14,
SECTION 7: OPERATION
WARNING: Keep hands and feet away
from the chute area on cutting deck. See
Waming Label, Figure 1 on page 4.
The operation of any lawn mower can
result in foreign objects being thrown into
the eyes, which can result in severe eye
damage. Always wear safety glasses or
eye shields. We recommend wide vision
safety mask for over spectacles or
standard safety glasses.
NOTE: For shipping purposes your mower is set
with the wheels in a low cutting height position. For
best results raise the cutting position until it is
determined which height is best for your lawn. Sea
cutting height adjustment section.
GAS AND OIL FILL-UP
Service the engine with gasoline end oil as
instructed in the separate engine manual packed
with your mower. Read instructions carefully.
WARNING: Never fill fuel tank indoors,
with engine running or until the engine has
been allowed to cool for at least two
minutes after running.
BEFORE STARTING
1.
Attach spark plug wire to spark plug. It unit is
equipped with a rubber boot over the end of the
spark plug wire, make certain the metal cap on
the end of the spark plug wire (inside the rubber
boot) is fastened securely over the metal tip on
the spark plug.
TO START ENGINE AND ENGAGE
BLADE
1.
2.
.
Move throttle control lever all the way forward.
If engine is equipped with a primer, prime
engine as instructed in the separate engine
manual packed with you unit.
Standing behind the unit, depress the blade
control handle and hold it against the upper
handle.
4,
5.
Grasp starter handle and pull rope out slowly
until engine reaches start of compression cycle
(rope will pull slightly harder at this point). Let
the rope rewind slowly.
Pull rope with a rapid, continuous, full arm
stroke. Keep a firm gdp on starter handle.
Retum itslowly tothe rope guide.
11
6. Afterenginestarts,movethrottlecontrolto
desiredenginespeed.(Mowerisdesignedtobe
operatedatfullthrottle.)
NOTE:Ifanyproblemsareencountered,referto
theTroubleShootingGuideonPage16.
TO STOP ENGINE AND BLADE
1. Move throttle control lever to the SLOW position.
2. Release the blade control handle to stop the
engine and blade.
,_ WARNING: The blade continues to
rotate for a few seconds after the engine
is shut off.
3. Disconnect the spark plug wire and ground it
against the engine to prevent accidental starting
while equipment is unattended.
USING YOUR ROTARY MOWER
,_ WARNING: Never operate your unit
without either the rear deflector or entire
grasscatcherassembly in place.
Be sure that lawn is clear of stones, sticks, wire, or
other objects which could damage lawn mower or
engine. Such objects could be accidentally thrown
by the mower in any direction and cause serious
personal injury to the operator and others.
For the best results,do not cut wet grass becauseit
tendstostickto the undersideofthe mower,prevent-
ing properdischarge of grass clippings, and could
cause you to slipand fall.New grass, thickgrass or
wet grass may requirea narrower cut. Blade speed
shouldbe adjustedtotheconditionofthelawn.
For • healthy lawn, never cut more than one-third
of the total length of the grass at any one cutting.
Lawn should be cut in the fall as long as there is
growth.
This moweris designedto beoperated at fullthrottle
to giveyou the bestcutand do the mosteffectivejob
of baggingthe cutgrass.
A
WARNING: If you stdke a foreign
object, stop the engine. Remove wire
from spark plug, thoroughly inspect the
mower for any damage, and repair the
damage before restarting and operating
the mower. Extensive vibration of the
mower duringoperation is an indicationof
damage. The unit should be promptly
inspectedand repaired.
USING YOUR MULCHER
(Mulching Kit is Optional Equipment)
For effective mulching, do not cut wet grass
because it tends to stick to the underside of the
deck, preventing proper mulching of grass clippings.
New or thick grass may require a narrower cut. The
ground speed should be adjusted to the condition of
the lawn. If mowing has been delayed and the grass
has been allowed to grow in excess of 4", mulching
is not recommended. Mow using the grass bag (if
so equipped) to reduce the grass height to 3-1/4"
maximum before mulching.
SECTION 8: ADJUSTMENTS
&
WARNING: Do not at any time make
any adjustment to lawn mower without
first stopping engine and disconnecting
spark plugwire.
CU'I'FING HEIGHT ADJUSTMENT
An adjustingplate and thumb lever at each wheel
position provides cuing height adjustment. Each
adjustingplate has nine height positions.Height of
cut willbe changed when the thumb lever is moved
from one hole to another.Simply depress the lever
towardswheel and move wheel and lever assembly
to desiredposition.Allwheels must be placedin the
same relativeposition.See Figure 15.
Figure15
Height
Lever
12
HANDLE HEIGHT ADJUSTMENT
Your mower is shipped with the handle in the higher
height position. To lower the handle height, proceed
as follows.
Lower
Handle .z Notch
2. Push the throttle control lever on the handle all
the way forward as far as it will go, then back it
off one "click." Make certain the throttle control
lever remains in this position.
3. Push the control lever on the engine as far
toward the rear of the engine as it will go.
Secure the cable in this position with the cable
clamp and screw.
Brlggs & Stratton Quantum Engines
Cable /
1.
2,
3.
4,
5.
6.
Figure 16
Remove the starter rope from the rope guide.
Remove the upper handle by removing the
hand knobs and carriage bolts. Lay the upper
handle out of the way, being careful not to bend
or kink the cables.
Remove the hairpin clips from the weld pins on
the handle brackets. Press outward on the legs
of the lower handle, and remove it from the
mower.
Turn the lower handle around so the notches on
the bottom of the lower handle are facing
forward as shown in Figure 16. Reassemble,
placing the bottom holes in the handle over the
weld pins in the handle mounting bracket.
Reassemble the upper handle.
Place the hairpin clips in the inner holes in the
weld pins and attach the starter rope as
instructed in the Set-Up Instructions.
THRO'R'LE CONTROL ADJUSTMENT
If the throttle control needs adjustment or if it has
been replaced, adjust as follows.
1. Remove the screw shown in Figure 17 and
Figure 19. Remove the cable clamp from the
cable.
NOTE: If you have a Tecumseh engine, simply
loosen the screw shown in Figure 18 so the cable
will move freely beneath the damp. It is not
necessary to remove the screw and clamp
completely.
Control
Lever
On Engine
Figure 17
Tecumseh Engines
Cable
Clamp
Screw
Figure 18
Briggs & Stratton Sprint and
Classic Engines
Clamp
Figure 19
Control
Lever
On Engine
13
CARBURETORADJUSTMENTS
WARNING: if any adjustments are
made to the engine while the engine is
running(e.g. carburetor), keep clear of all
moving parts. Be careful of heated
surfaces andmuffler.
Minor carburetor adjustments may be required
to compensate for differences in fuel,
temperature, altitude and load. To adjust
carburetor, refer to the separate engine manual
packedwithyour mower.
NOTE: A dirtyair cleaner will cause an engine to
run rough. Be certain air cleaner is clean and
attached to the carburetor before adjusting
carburetor.
SECTION 9: LUBRICATION
WARNING: Always stop engine and
,_ disconnect spark plug wire before
cleaning, lubricatingor doing any kind of
work on lawnmower.
Blade
Control Handle
Figure 20
Blade Control: Lubricatethe pivotpoints on the
blade control handle and the brake cable at least
once a season with light oil. See Figure 20. The
bladecontrolmustoperatefreely in bothdirections.
Rear Discharge Door: The torsionspringsand
pivot points should be lubdcated periodically with
light oil to prevent any rust or binding. Door must
workfreely.
Wheels: The wheels require no lubrication.
However, if the wheels are removed for any reason,
lubricate the surface of the axle bolt and the inner
surface of the wheel with light oil. Engine oil may
also be used.
Engine: Follow engine manual for lubrication
instructions.
SECTION 10: MAINTENANCE
_hb ARNING: Be sure to disconnect and &
ground the spark plug wire before
performing any repairs or maintenance.
NOTE: When tippingthe unit,empty thefuel tank
and keepenginesparkplugside up.
TROUBLE SHOOTING
Refer to page 16 ofthis manualfor troubleshooting
information.
CUTrlNG BLADE
When removingthe cuttingblade for sharpeningor
replacement, protect hands by using heavy gloves
or a rag to graspthe cuttingblade. Removethe bolt
and blade support or bell washer which hold the
blade and adapter to the engine crankshaft.
Remove thebladeand adapterfrom the crankshaft.
WARNING: Periodically inspect the
blade adapter for cracks, especially if you
strike a foreign object. Replace when
necessary.
Whensharpeningthe blade, follow the originalangle
of grind as a guide. It is extremely important that
eachcuttingedge receivesan equal amountofgrind-
ingto preventan unbalanced blade. An unbalanced
bladewillcause excessivevibrationwhen rotatingat
high speeds, may cause damage to the mower and
couldbreak,causingpersonalinjury.
The blade can be tested by balancing it on a round
shaft screwdriver. Remove metal from the heavy side
until it balances evenly. It is recommended that the
blade always be removed from the adapter for the
best test of balance.
Beforereassemblingthebladeand the bladeadapter
to the unit, lubricate the engine crankshaftand the
inner surface of the blade adapter with light oil (or
engine oil).Lubricatingthe belt holes, boltsand inner
surfaceofthe nuts isalsorecommended.
14
SINGLE BOLT BLADE MOUNTING
install the blade adapter on the crankshaft with the
"star" away from the engine. Refer to Figure 21.
Place the blade with the side marked bottom (or
with part number) facing away from the adapter.
Align the blade bell support over the blade with the
tabs in the holes of the blade and insert the hex
bolt. Tighten the hex bolt to the torque listed in the
"Blade Mounting Torque" section below.
Blade Adapter __
_ -__ _'_ Bell
Hex Bolt
Figure 21
Blade Mounting Torque
Center Bolt:450 in. Ibs. min., 600 in. Ibs. max.
To ensure safe operation of your unit, all nuts and
bolts must be checked periodically for correct
tightness.
DECK
The underside of the mower deck should be
cleaned after each use to prevent a buildup of grass
clippings, leaves, dirt or other matter. If this debris is
allowed to aCCumulate, it will invite rust and
corrosion, and may cause an uneven discharge of
grass clippings at the next cutting.
The deck may be cleaned by tilting the mower and
scraping clean with a suitable tool (make certain the
spark plug wire is disconnected).
ENGINE
Refer to the separate engine manuel for engine
maintenance instructions.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and
follow instructions carefully.
Service air cleaner every 25 hours under normal
conditions. Clean every few hours under extremely
dusty conditions. Poor engine performance and
flooding usually indicates that the air cleaner should
be serviced. To service the air cleaner, refer to the
separate engine manual packed with your unit.
The spark plug should be cleaned and the gap reset
once a season. Spark plug replacement is recom-
mended at the start of each mowing season; check
engine manual for correct plug type and gap specifi-
cations.
Clean the engine regularly with a cloth or brush.
Keep the cooling system (blower housing area) clean
to permit proper air circulation which is essential to
engine performance and life. Be certain to remove all
grass, dirt and combustible debris from muffler area.
REAR FLAP REPLACEMENT
The rear flap is attached to the back of the mower
deck, and isdesigned to minimize the possibilitythat
objects will be thrown from the rear of the mower
toward the operator, if the rear flap becomes dam-
aged, replace as follows,
To remove the old rear flap, cut off the flat end of the
wire rod which secures it to the deck using a pair of
side-cutters. Attach the new rear flap using the new
red provided with the rear flap, bending the ends of
the rod over to secure.
SECTION 11: OFF-SEASON STORAGE
The following steps should be taken to prepare lawn
mower for storage.
1. Clean and lubricate mower thoroughly as
described in the lubrication instructions.
2. Refer to engine manual for correct engine
storage instructions.
3. Coat mower's cutting blade with chassis grease
to prevent rusting.
4. Store mower in a dry, clean area. Do not store
next to corrosive materials, such as fertilizer.
NOTE: When storing any type of power equipment
in an unventilated or metal storage shed, care
should be taken to rust-proof the equipment. Using
a light oil or silicone, coat the equipment, especially
cables and all moving parts.
15
SECTION 12" TROUBLE SHOOTING GUIDE
Trouble
Engine fails to
start
Engineruns
erratic
IEngine
overheats
iPossible Cause(s)
Blade controlhandle disengaged.
Spark plugwire disconnected.
Dirty aimleaner.
Primer button not depressed.
Throttlecontrollever not incorrect
starting position(if so equipped).
Fueltank empty or stale fuel.
Blockedfuel line (itso equipped).
Faultysparkplug.
Engineflooded.
Unitrunningin START position.
Spark plugwire loose.
Blockedfuel line (itso equipped)or
stale fuel.
Vent in gascap plugged.
Water ordirt infuel system.
Dirty aircleaner•
Carburetorout of adjustment.
Engine oillevel low.
Dirty aimleener:
Air flowrestricted.
Corrective Actions
Engage blade control handle.
Connect wire to spark plug.
Refer t0i tile engine manual packe!d with your unit.
Refer to the engine manual packed with your unit.
Move throttle lever to FAST or START position.
Carburetornot adjusted prepedy.
Occasional
skip(hesitates)
at highspeed
Idles poody Reset gap to .030=or replace sparkplug•
Excessive
vibration
Mower willnot
mulchgrass
Spark pluggap too close.
Carburetoridle mixtureadjustment
improperlyset.
Spark plugfouled, faulty or gaptoo
wide•
Carburetor imprepedyadjusted.
Dirty air cleaner.
Cutting bladeloose or unbalanced.
Bent cuttingblade.
Enginespeed too low.
Wet grass:
Excessivelyhigh grass.
Uneven cut Wheels not positionedcorrectly.
Dull I_ade.
Filltankwith clean fresh gasoline.Fuelwillnot lastoverthirty
days unlesse fuel stabilizer isused.
Clean fuel line.
Clean, adjust gap or replace.
Refer to the engine manual packedwithyour unit.
Movethrottle leverto FAST position.
Connect andtightenspark plugwire.Check sparkplugfur
fouling• i
Clean fuel line;fill tank withclean, freshgasoline.Fuelwill
notlast overthirtydays unless afuelstabilizerisadded•
Clear ventorthreads or replace.
Drain fubltank. Refill with freshfuel.
Refer td the engine manual packed withyour unit.
Refer to the engine manual packedwithyour unit.
Fillcrankcasewith proper oil.
Referto the engine manual packedwithyour unit.
Stop engineand disconnectsparkplugwire. Removeblower
housingand clean.
Referto the engine manual packedwithyour unitor see an
authorizedservice dealer.*
Adjustgap to .030".
Referto the engine manual packed withyour unit,
Referto the engine manual packedwithyour unit•
Referto the engine manuel packedwithyour unit.
Tighten bladeand adapter. Balanceblade.
See an authorizedservice dealer.
Setthrottle between 3/4 and fullthrottle.
Do not mow when grass iswet;waituntillatertocut.
Mow onceat a high cuttingheight,then mow againat
desiredheightor make a narrowercuttingswath(1/2 width).
Place all fourwheels insame heightposition.
Sharpen dr replace blade.
Note: For repairs beyond the minor adjustments above, coi_tact your local authorized service dealer.
16
Shroud Chart
Part No. Color Part No. !Color IPart No. Color Part No. Color
751B281439 Dark Red 731-1395A IRed 731-1587A Black 731-1561 Black
751B281440 Black 731-1396A Black 731-1603A Yellow
751B281443 BrightRed 1731-1397A Gray 731-1610A Pewter
731-1620A Gray
IHardware: Hardware: Hardware: Hardware:
710o1256 (Screw) 710-1256 (Screw) 710-1184 (Screw) 7510042823 (Screw)
Part No. Color
731o1402A Yellow
731-1694 Black
731-1695 Silver
731-1934 Charcoal
Hardware:
710-1258 (Screw)
Part No. Color
7510143208 Black
Hardware:
7510042823 (Screw)
Part No. Color
731-1585B Black
Hardware:
710-1274 (Screw)
Part No. Color
731-1586B Black
731-1612A Red
Hardware:
7510042823 (Screw)
Part No. Color Part No. Color Part No. Color Part No. Color
75113281451 Gray 751B281476 Black 7511681311 Black
75113261777 Yellow 7511681911 Rod
7511682011 Gray
Hardware:710-1256 Hardware:710-1237 Hardware: - - Hardware:
17
Models 410 thru 429
27
66
59 75
WHEEL CHART
Wheels w/o Bearings Wheels with Bearings
Brg. Part No. 741-0484
Bar Tread Unk Tread
734-1781 Grey, Slot Hub 734-1819 Grey
734-1841 Grey, Aero
634-0020 Grey, Disc Hub
18
Models 410 thru 429
REF.
NO,
1
2
3
4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
3O
31
PART NO.
747-0824
647-0004
747-0615
710-1205
720-0279
710-1174
720-0276
710-0605
710-1270
736-0501
712-0324
746-0876
749-0538C
749-0920A
720-0295
749-0928
726-0240
764-0310
746-0550
746-0737
746-0552
746-0553
746-0842
746-0847
746-0843
764-0311
764-0309
764-0476A
714.-0104
732-0678
732-0677
782-7000
751B213146
7510007775
646-0875
811-00185
746-0883
710-1237
735-0639
732-0700
731-1236
DESCRIPTION
Control Handle (Std.)
Control Handle Ass'y. (Deluxe)
Control Handle
(11A-428-02?J722)
Rope Guide
Handle Knob 1/4-20 Thd.
Curved Hd. Bolt 5/16-18 x 2" Lg
Hand Knob
Oval C-Sunk Mash. Scr.
Oval C-Sunk Mash. Scr. (Model
411 Only)
Spr. Wash, .66" I.D.
Hex L-Nut 1/4-20 Thd.
Throttle Lever
Upper Handle
Upper Handle (11A--428-022J722)
Foam Grip (Optional)
Lower Handle
Cable Tie
Rear Catcher Frame
Control Cable-39" (410, 412, 414,
424)
Control Cable-51" (411,413, 425)
Control Cable-49" (411)
Control Cable-36" (416, 418, 428,
429)
Throttle Control Wie - 51"
(410,412, 414, 424)
Throttle Control Wire - 42" (413,
425)
Throttle Control Wire - 55" (416,
418, 428, 429)
Front Catcher Frame
Grass Bag
Grass Bag w/Logo
Int. Cotter Pin 5/16" Die.
Door Spdng - R.H.
Door Spring - LH.
Rear Discharge Door
Cable Clamp (B&S)
Casing Clamp (Tec.)
Throttle Body
Throttle Box Comp. (Incl. Ref. 7, 8,
9, 10,25)
Housing, E.R.S. w/o Throttle
(11A411A022J722)
Engine
Hex Wash. Hd. Scr. #10-32 x .62"
Lg. (B&S)
Spark Plug Boot (Optional)
Wire Rod
Rear Flap
REF.
NO, PART NO.
32 753-0588
33 710-1044
34 736-0524A
36 742-0741
742-0641
39 736-0356
40 712-0798
41 15261A
42 15262B
43 14832
44 738-0507B
45 736-0105
46 738-0102
47 720-0190
48 732-0417A
49 14578
14579
50 14765
14766
51 782-5002
52 710-0654A
53 782-5003
54 710-1017
55 710-0896
56 682-0516
57 682-0515
58 782-0310A
59 (See Chart)
60 731-0981 A
720-0249
61 764-0433
62 731-1322A
731-1878
63 710-0286
64 712-0324
65 782-9011
66 782-5007A
67 782-5004
68 731-1405
69 711-0996
70 726-0201
71 710-0192
72 720-0275
73 731-1506
74 738-0213
738-0102
75 750-0535
76 736-0504
DESCRIPTION
Blade Adapter Kit
(Incl. Ref. 33 & 34)
Hex Bolt 3/8-24 x 1.5" Lg.
Blade Bell Support
21" Mulching Blade -1 Bolt Mount
21" Blade - 1 Bolt Mount
Bell-Wash..39" I.D. x 1.38"
Hex Nut 3/8-16 Thd.
Height Adj. Plate
Pivot Bar
Spring Lever Ass'y. w/Knob
Shld. Bolt .5" Die. x .357"
Bell-Wash..38" I.D, x .88" O.D.
Axle Bolt
Spdng Lever Knob
Spring Lever
Height Adj. Ass'y. Comp. - R.H.
Height Adj. Ass'y.Comp. -L.H. (Not
Shown)
Pivot Bar R.H.
Pivot Bar L.H. (Not III.)
Front Baffle
Hex L-Wash. Hd. Scr. 3/6-16 x 1"
Lg.
Rear Baffle
Torx Mech. AB-Tap Scr. 1/4 x 62"
Lg.
Hex Ind-Wash.Scr. 1/4 -14 x .625
Lg.
Handle Brkt. Ass'y. - R.H.
Handle Brkt. Ass'y. - L.H.
21" R.D. Deck
Wheel Assy. Comp.
Hub Cap - Gray, Red. Spoke
Hub Cap - Gray, Euro
Grass Bag
Hard Top Cover
Hard Top Cover w!Logo (Opt.)
Pan Hd. Mash. Scr. 1/4-20 x .5" Lg.
Hex Nylon L-Nut 1/4-20 Thd.
Mounting Bracket
Mulching Baffle Plug (Optional)
Mulching Baffle - R.R. (Optional)
Deflector (Optional)
Rod (Optional)
Push Speed Nut (Optional)
Truss Scr. #10-24 x .38" Lg.
Knob
Deck Shroud (Optional)
Rear Axle Bolt 1"
Axle Bolt
Spacer 1"
Wave Washer 1"
1"Used on units with ball bearing rear wheels.
19
MANUFACTURER'S
LIMITED
WARRANTY
For TWO YEARS from the date of retail purchase
withinthe United States of Amedca, its possessions
and territories,the manufacturerwill, at its option,
repair or replace, for the originalpurchaser, free of
charge, any part or parts found to be defective in
materialor workmanship.This warranty coversunits
which have been operated and maintained in
accordancewiththe operatinginstructionstumished
with the unit, and which have not been subject to
misuse, abuse, commemial use, neglect, accident,
impropermaintenanceoralteration.
Normal wear pads or components thereof are
subjectto separate termsas noted below in the "No
FaultNinetyDay ConsumerWarranty"clause.
All normal wear part failures will be coveredon this
productfor a periodof 90 days regardlessof cause.
After 90 days, butwithinthetwo year period,normal
wear parts failures will be covered ONLY IF caused
by defects in material or workmanship of OTHER
componentparts. Normalwear parts are definedas
batteries*, belts, blades, blade adapters, grass
bags, rider deck wheels, seats, snow thrower skid
shoes,shaveplates andtires.
How to obtsln service: Warranty service is
available, withproof of purchase,throughyourlocal
authorized service dealer. To locate the dealer in
yourarea, please checkthe yellow pages or contact
the Customer Service Department of the
manufacturer, P. O. Box 368022, Cleveland, Ohio
44136-9722. Phone 1-800-800-7310. The return of
a complete unit will not be accepted by the factory
unless prior written permissionhas bean extended
bytheservicedepartmentofthe manufacturer.
Transportation charges: Trensportation charges
for the movement of any power equipment unit or
attachmentare the responsibilityof the purchaser.
Units exported out of the United Ststss: The
manufacturer does not extend any warranty for
products sold or exported outside of the United
States of America, its possessions and territories,
except those sold through the manufacturer's
authorizedchannels ofexportdistribution.
Other Warranties:
1,
The engine or component parts thereof carry
separate warranties from their manufacturers.
Please refer to the applicable manufacturer's
warrantyon theseitems.
2. *Batteries are covered by a 90-day replacement
warranty.
3. Log splitter pumps, valves and cylinders or
component parts thereof are covered by a one
year warranty.
4.
All other warranties, express or implied,
including any implied warranty of
merchantability or fitness for a particular
purpose, are hereby expressly disclaimed in.
theirentirety.
5.
The provisions as set forth in this warranty
providethe sole and exclusive remedy of the
manufacturer's obligations arising from the
sales of its products.The manufacturerwill not
be liable for incidentalor consequential loss or
damage.
How state law relates to this warranty: This
limited warranty gives you specific legal rights, and
you may also have other rights which vary from
state to state. Certain disclaimers are not allowed in
some states and therefore they may not apply to
you under all circumstances.
NOTE: This warranty does not cover routine
maintenance items such as lubricants, filters, blade
sharpening and tune-ups, or adjustments such as
brake adjustments, clutch adjustments or deck
adjustments. Nor does this warranty cover normal
deterioration of the exterior finish due to use or
exposure.
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